 | | Re: nonvolatile memory
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You need to either 1. build a battery circuit that connects to the power pins of the memory chip or 2. Buy nonvolatile memory -phil (...) (26 years ago, 8-Mar-99, to lugnet.robotics.handyboard)
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| | Re: nonvolatile memory
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(...) You can get a RAM Module with built-in battery. Don't remember the name but they are out there. (...) ---...--- Shoot-to-Win Protect the 2nd Amendment ---...--- (26 years ago, 8-Mar-99, to lugnet.robotics.handyboard)
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| | Re: nonvolatile memory
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Just a thought, you could try one of Dallas Semiconductor's nonvolatile SRAM such as the DS1225Y Cheers, Ranjit (...) -- Ranjit Diol - COMPSys Dowagiac,Michigan e-mail: rsdiol@mich.com website: (URL) (26 years ago, 8-Mar-99, to lugnet.robotics.handyboard)
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| | nonvolatile memory
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Does Anyone know how to modify the handy board so that when the battery is disconnected the memory on the board is not lost? In short I want the HB to have nonvolatile memory so that I do not have to reload the pcode in bootstrap mode every time the (...) (26 years ago, 8-Mar-99, to lugnet.robotics.handyboard)
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| | HB & unmanned vehicle system
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Hi, can anyone help me in devolping an unmanned ground vehicle system using a Hand Board? This is my first experience with the HB, in fact, I'm actually buying it (sorry, but may be you can also tell me where to by one by the internet and what to (...) (26 years ago, 8-Mar-99, to lugnet.robotics.handyboard)
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| | 20 X 8 L.C.D driver?
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I have seen questions on the list about using a 20 X 8 instead of a 16 X 4 lcd, I think that the person was told to look on the handy board site for a 20 X 8 driver. has anybody used a 20 X8 lcd and if so how did you do it and could you help me use (...) (26 years ago, 8-Mar-99, to lugnet.robotics.handyboard)
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| | Serial Routines
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Hi, I have the following questions: I want to transmit data by a radio comunication beetween HB and PC (only HB to PC right know) using the pa7 and a one-way wireless link from Conrad Electronics (german electronic reseller). Do i need the pa7_9600 (...) (26 years ago, 8-Mar-99, to lugnet.robotics.handyboard)
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| | RE: Sharp GP2D05?
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I have used the Sharp GP2D05 with the Handy Board and found it to be extremely simple to use. It is easy to control in either IC or in assembly language and easy to adjust for range. There is a tiny potentiometer on the back of the unit that you (...) (26 years ago, 8-Mar-99, to lugnet.robotics.handyboard)
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| | Re: Java and 68hc11
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Thanks, I downloaded all, and now i'm trying to make it run. Very, very interesting... ---...--- From: Pierre Deprost <Pierre.Deprost@Advalvas.be> To: Stefano Falconetti <falconetti@sigma.it> Subject: Re: Java and 68hc11 Date: 03 March 1999 22:20 (...) (26 years ago, 8-Mar-99, to lugnet.robotics.handyboard)
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| | RE: Sharp GP2D02 code available
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Terry, Understand that the GP2D05 is a different device than the GP2D02. For the '05' you can set a analog threshold and the digital output read 1 or 0 depending whether the distance is according to this set threshold. The '02' device has a real (...) (26 years ago, 8-Mar-99, to lugnet.robotics.handyboard)
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| | Are GP2D02 available in Australia
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Hi all, Can anybody tell me from where I can get GP2D02 in Australia. Sincerely Javaid Iqbal (26 years ago, 8-Mar-99, to lugnet.robotics.handyboard)
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| | Re: Sharp GP2D02 code available
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I just finished sending a question to the mail list but may have my problem fixed? Just from blind luck. I have digital out #7no the expansion board and digital in#15 on the main board and the first of the zeros on on the LCD changes to a one at (...) (26 years ago, 8-Mar-99, to lugnet.robotics.handyboard)
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| | Re: Sharp GP2D02 code available
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Hi Barry, I have a GP2D05 from Acroname Inc., Have wired as per instructions black for gnd., green for Vin, Yellow for Vout, and red for Vcc.The pin outs are different than the GP2D02. Then installed the diode and connectors for the handyboard .as (...) (26 years ago, 8-Mar-99, to lugnet.robotics.handyboard)
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| | stepper motors
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Hi : I am looking for a stepper motor that works at 7V. I was wondering if any of you have used stepper motors for the handyboard or the Rug Warrior. If so, what model did you use and what was your selection criterion for the motors. Thanks. (26 years ago, 7-Mar-99, to lugnet.robotics.handyboard)
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| | Re: Where do I get Sharp GD sensors
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I ordered mine from Acroname Inc. for $19.00. They also have sample code provided by Gary Livick. I haven't connected it to the handyboard as or this time but will be intersted to know how everyone else is doing it. Mine is a model GP2D02. Good Luck (...) (26 years ago, 6-Mar-99, to lugnet.robotics.handyboard)
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| | HB v1.2, IC v3.1 and ir functionality
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I'd like to get the ir functionality working on my v1.2 handy board. I am using the 3.1 version of IC from newton labs. See below for the files included with this release. According to The Handy Board Technical Reference" Dated Jan 16, 1997, I must (...) (26 years ago, 6-Mar-99, to lugnet.robotics.handyboard)
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| | Re: Rolling Ball Inclinometers
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I recall one of the surplus electronics/mechanics catologs (All Electronics? Herbach&Rademan) were selling them for $0.50 -----Original Message----- From: Michael N Rosenblatt <mr4@andrew.cmu.edu> To: handyboard@media.mit.edu (...) (26 years ago, 6-Mar-99, to lugnet.robotics.handyboard)
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| | Re: Two servos, one input ?
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(...) Why do you want to have two servos doing exactly the same thing? Why can't you simply mechanically hook up the two things you want to drive the same way to a single servo? (26 years ago, 6-Mar-99, to lugnet.robotics.handyboard)
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| | Re: Could IR ranging sensors be used with Rug Warrior board as well
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(...) I designed and etched a small adapter board that interfaces three Sharp GPD05 and one GPD02 sensors with RW. It replaces the contact bump switches with the Sharp detectors by driving voltage followers to the level of the resistor ladder used (...) (26 years ago, 5-Mar-99, to lugnet.robotics.handyboard)
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| | Where do I get Sharp GD sensors
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Thanks for the info. I am decided on sharp, because I want to do wall following, now where do I get them. Also, where do I get some code for it, if there are any? Thanks much. (26 years ago, 5-Mar-99, to lugnet.robotics.handyboard)
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